Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (5): 050523 doi: 10.13538/j.1001-8042/nst.2013.05.023

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2012) • Previous Articles     Next Articles

Isoscalar-vector interaction and its influence on the hadron-quark phase transition  

SHAO Guoyun1,*  COLONNA Maria2  DI TORO Massimo2,3 LIU Yuxin4,5  LIU Bo6,7     

  1. 1Department of Applied Physics, Xi'an Jiao Tong University, Xian 710049, China

    2INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, Catania , I-95123, Italy

    3Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, Catania I-95125, Italy

    4Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University , Beijing 100871, China

    5Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

    6Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

    7Theoretical Physics Center for Scientific Facilities, Chinese Academy of Sciences, Beijing 100049, China  

  • Contact: SHAO Guoyun E-mail: shaogy@pku.edu.cn
  • Supported by:

    Supportedby National Natural Science Foundation of China (NSFC) projects (Nos.11147144 and 11305121)

     

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SHAO Guoyun, COLONNA Maria, DI TORO Massimo, LIU Yuxin, LIU Bo. Isoscalar-vector interaction and its influence on the hadron-quark phase transition  .Nuclear Science and Techniques, 2013, 24(5): 050523     doi: 10.13538/j.1001-8042/nst.2013.05.023
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Abstract:

Thehadron-quark phase transition is studied with the newly constructed Hadron–Poyakov-Nambu–Jona-Lasinio (PNJL) model. Particularly, in the description of quark matter, weinclude the isoscalar-vector interaction. With the constraints of neutron starobservations, our calculation shows the isoscalar-vector interaction betweenquarks is indispensable if massive hybrids star exist in the universe. Itsstrength determines the onset density of quark matter, and the mass-radiusrelations of hybrid stars. Also, as a connection with heavy-ion-collisionexperiments, we discuss the strength of isoscalar-vector interaction and itseffect on the signals of hadron-quark phase transition in heavy-ion collisions,such as NICA at JINR-Dubna and FAIR at GSI-Darmstadt.

Key words: Hadron-quark phasetransition, Neutron star, Heavy-ion collisions